Block-grooving machine



Oct. 28, 1930. T. cs. G/ALE ET AL BLOCK GROOVING MACHINE Filed May 27, 1927 2 Sheets-Sheet l /NVE/V TOPS.

TEGALE SBTR/CK.

Oct. 28, 1930. I T. G. GAL ET AL 1,779,731

BLOCK GROOVING MACHINE Filed May 27, 1927 2 Sheets-Sheet 2 /NVENTOR5.

7T6.6A1.E w 5.8.TR/CK v Patented Oct. 28, 1930 moms e. GALE AND SAMUEL airmen, OE SHAWA. oNrAnId DA-nana nLooK-Gnoovme"iraciirnn' I Application filed May 27,

7 Our invention relates to improvements in block grooving machines and the ob ect of the 1nvent1on is to devise an lmpr'oved machine which will cut out a groove of the re-f quired shape in one face of the block.

A further object is to devise a machine which can be so operated that the grooves cut in the blocks will be uniform and clean cut.

While our invention is particularly intend ed for cutting the grooves in Wheel or chock blocks adapted to be placed against the tires of automobiles being shipped in freight cars in which the blocks are secured to the floor 5 of such car, our machine is susceptible for use for many other purposes in which it is desired to cut an are shaped groove in the face of a block. 7 1 Our' invention conslsts of a block -groov- 2O ing machine constructed and arranged all as hereinafter more particularly described and illustrated in the accompanying drawings in which I V Fig. 1 represents a plan view of the machine.

Fig. 2is a vertical cross section through the line 2-2 Figure 1.

Fig. 3 is a side elevationof head.

Fig. 4 is a front elevation thereof. I Fig. 5 is a side elevation of the block which it is desired to groove, showing the groove in dotted lines, and i the cutter Fig. 6 is a plan view of the block showing thegroove cut therein.

Like characters of reference indicate. corresponding parts in the different views.

1 is the base of the machinev and 2 is the bed plate upon which are mounted the bear-.

ings 3 and l. 5 is the cutter head shaft jour nalled in the bearings 3 and 4 and carrying at one end the cutter head 6 and at the other 1 end the coupling 7 which connects the shaft 5 to a drive shaft 8 adapted to be driven by any source of power.

9 is a carriage pivotally mounted on the vertical shaft 10 so as to be capable of swinging in a horizontal plane, said carriage 9 comprising a frame-like structure including the transverse members 11 and 12, the former 19:27. Serial 194,742. it

having a longitudinal S1015 13 through which the shaft 5 eXtendsI- A brace 14 extends be tweenthe'upper faces of'the members 11 andv 12,;and an arcishaped plate l5 'ex'tends be tween the lower faces of 'such' I'n'embers.- ldisan adjustable notched plateon the plate 15, the notch; 17 thereof adapted to receive a corner of the block 18 to be grooved,

said block in-the present instance being of trapezoidal section. "19 is a gaugeplate of L secti'on also secured tothe upper-face-of the pl'ate' l5 against which-the lower edge of the surface of -the block to begrooved en-'- gages. 2O is-a flap hinged to one edge-ofthe brace *l li and provided .with "thejhandle 21, said'fiap 2O being provided on its lower face with a pin 22 which isa'dapted to engage the upper face of the'blojck 1;8,"when-th'e' flap is in the block engagingposition; 23is aspring extending between the-flap 20=and any portion ofthe carriage as'forinstance the"col-= 1 24 p 25fis anoper'ating handle extending-out wardly from the-armshaped plate- 15 and preferably positioned immediatelyjbelowthe handle 21 so that bothiha'ndles may be grasped in one hand bythe operator of the machine.- a

The face of the cutter head 6 remote from the shaft 5 is conical in shape and carries the triangular cutter knives 26 secured thereto by the bolts 27. 28 are adjustable lead knives inserted into the cutter head on its periphery.

Referring to Figures 5 and 6 of the drawing 29 represents the groove cut in the face of the block 18 and, as will be seen, thisgroove is are shaped inlongitudinalsection, the ra-' dius of the are exactly corresponding with the periphery of the tire of the automobile withwhich it is desired to engage. In cross p section the groove29 is also are shaped to correspond with the cross sectional'curvature of lower block supporting member, and a handle on the hingedvflap located substantially 2 down by the handle 21 until the pin 22 engages the upper face of the block. The operator then grasps the handles 21 and 25 and swings the carriage 9 toward the cutter so that the face 30 of such block 18 bears against the cutter knives 26 with the result that" as the carriage is pushed farther over intothe position illustrated in dotted. lines in Figure 1 a groove as above described is cut in the face 30 of such block 18.

To remove the block from themachine it is only necessary to lift the flapwhen the block may be withdrawn and theoarri'agecan then be swung back into its initial position ready for the cutting of another block.

From the above description it will be apparent that we have constructed a very simple and effective machine which will operate; with acutter head which while revoluble is not otherwise moved, the block to be out beingfed thereagainst, thus avoding the complicated mechanism; required inmachines,

such as shapers, used for this purpose. Fur-- thermore, we have devised a machine in which the block can be readily inserted thereinto and withdrawn therefrom with the minimum of trouble and; also in which the groove cut in successive blocks will be uniform.

What we claimas our invention is;

In a block grooving machine, a revoluble cutter fixed in position, a swingable block carrying carriage comprisingspaced aparttransverse members, a lower block supporting member secured at its ends to the transverse members, an upper member extending between the transverse members, a hinged flap normally springheld in its upward-1y" swung position, an operating handle on the above the operating handle. 1 THOMAS G. GALE.

SAMUEL B. TRICK. 

